欲張り

1. Origins, structure, and basic meaning

• Structure: The noun and adjectival noun 欲張り (よくばり) denotes greediness or a person who wants more than is reasonable.
• Basic usage: A person may be judged 欲張りだ, while an overambitious plan is 欲張りな計画.

2. Common pitfalls and similar expressions

• Wanting too much
  • It can label a person or modify a plan whose ambitions are excessive.